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A local unemployment office keeps track of the number of new claims filed each day. Based on data collected, it determines that the expected number of new claims filed per day is 2.4 with a standard deviation of 0.8688. Suppose that the office is open five days per week. What is the expected number of new claimes filed per week at this office?
The probability of his passing english is 0.8, but the probability of his passing both is 0.6. What should be his estimate of the probability of his passing math?
Describe whether statements regarding statistical significance are true or false. When your results are found to be statistically significant, can one conclude that they will have a meaningful effect in the clinic.
In a bumper test, three types of autos were deliberately crashed into a barrier at 5mph, and resulting damage was estimated. five test vehicles of each type were crashed.
question a company needs to select an expert group of consultants to provide advice for a given project. how many
When we carry out a chi-square test of independence, the expected frequencies are based upon the Null hypothesis - true or false.
trowbridge manufacturing produces cases for personal computers and other electronic equipment. the quality control
At a = 0.01, can it be concluded that the variance of the areas for counties in Indiana is less than the variance of the areas for counties in Iowa?
Your friend also takes the test and obtains a score of 161.42 and is told that he is in the 22.8th percentile. What is overall mean and standard deviation of the test scores?
there are 8 cds in a rack 5 are jazz and 3 are classic rock. two cds are selected at random one after the other with
rolling dice 25 times gives the below results. using your results find the relative frequency for each of the values 2
A reasearcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to test the claim that the treatment population mean is smaller than the control po..
What is the probability that of today's 1,100 callers at least 5 received a busy signal? Use the poisson approximation to the binomial.
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